Cutting and folding device for printing-presses.



2 SHEETS-SHEET 1.

PATENTED OCT. '22. 1907.

u www J. .0.. nusmncn, o r.

J. L. FIRM.

CUTTING AND FLDING DEVICE FOR PRINTING PRESSES.

wihwoaeo PATENTED OCT.' 22. 1907.

J. L. FIRM.

CUTTING AND FOLDING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED AIR. 30, 1907.

2 SHEETS-SHEET 2.

@wi tu use: I l

v ef m i@ vg/.m

annua, q'

wat..

UETTED STATES PATENT oEEIoE.

JOSEPH L. FIRM, OF BERWYN, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY,

' OF CHICAGO, ILLINOIS.

CUTTING AND FOLDING DEVICE FOR PRINTINGLPRSSES.

Application filed April 30, 1907. Serial No. 371,124.

To all whom 'it may concern:

Be it known that I, JOSEPH L. FIRM, a citizen of the United States, .residing at Berwyn, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cutting and Folding Devices for Printing-Presses, of which the following is a specification. A

This invention relates to transverse cutting and folding devices for cutting a plurality of longitudinal folded webs, used in rotary perfecting printing presses.

Heretofore, single cutting blades have been used, but

v the capacity thereof is limited, with respect to the numdone at one operation.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a diagrammatic section of a rotary transverse cutter and carrier provided with the invention. Fig. 2 is a similar view of a carrier having a double feed and delivery. Fig. 3 is a side view in detail, showing the edges of the knives and the manner in which they coperate. Fig. 4 is a detail in side elevation of one of the knife sections and the adjacent fiber block. Fig. 5 is a side view of the knife box, showing wedges to adjust the same in or out.

In the construction shown in the drawings, the body of the rotary carrier and the impaling pins and the folders may be of the usual construction, the pins and folders being controlled or operated by4 cams and levers in the ordinary manner, such as shown and described in my U. S. Patent No. 658209, to which reference may be made for the details of construction.

The webs pass between the rotary cylindrical carrier A and the cutting cylinder B. Each of these cylinders has a longitudinal inortise cut in the body thereof and extending from end to end, to receive the supporting boxes K which hold and support the cutting blades and the yielding fiber blocks. Each block has an inclined bottom with a wedge L thereunder which may be adjusted to set up the box as desired.

The opposite boxes have cutting blades 1 and 2 fixed therein, and on opposite sides of the blades are the fiber A blocks 4, 5, 6 and 7, supported by springs 12, 1 3, 14 and Specification of Letters Patent.

Patented Oct. 22, 1907.

15 thereunder. The edges of the opposite blades are presented toward each other, with a slight lap or offset, which may be produced by greater bevel on one side than on the other. The springs under the fiber blocks serve to clear the sheets from the knives as soon as the cut is made.

The cutting edges of the blades are toothed or serrated, as indicated in Fig. 3, the serrations being arranged, and the blades being adjusted,'so that the teeth of one blade will be presented toward and work across the spaces between the teeth of the other blade, whereby the teeth will penetrate superposed webs from opposite sides and give the action and effect of a shear cut which will effectively sever all the webs, and will cut through a much thicker body of material than a single l Webs to pass therebetween and alsoacting to clear the t webs from the knives after being cuti The ends of the cutting cylinder and the carrier preferably have two segment gears D a/nd E which engl o'e with each other as the cutting laction takes place. These gears are located adjacent thdends of the cutting boxes and insure the exact registry`r or position of the cutting blades with respect to each other.

After being cut the impaling pins carry the sheets or papers around with the carrier and they are transversely folded off by the folding blades 18 which thrust the same between the rollers 16 and 17, to any suitable delivery in the usual manner.

In Fig. 2 the carrier is shown provided with a double feed and delivery, as shown in my pending application Number 354101, the cutting devices of the carrier coopeifating alternately with the cutting devices of the opposite cylinders B and C, the completed papers being delivered at opposite sides between the pairs of rollers 16 and 17, and 20 and 21, respectively.

Iclaim:

1. The combination of coperating rotary cylinders, knives carried by the cylinders, the cutting edges of the knives being serrated and presented toward each other when cutting, with the teeth of one knife between the' teeth of the other and coacting to cut webs or sheets passed between the cylinders, and ggipping blocks extending along beside the knives and having matrices therefor.

2. The combination of ar rotary carrier cylinder, a cutter cylinder coperating therewith, each cylinder' havingr a knife carried thereby, and a yieldingr gripping block opposite the knife of the other cylinder, the cutting edges of the knives being serrated and arranfzed to come together and slightly lap each other with the teeth of one knife between the teeth of the other as the cylinders are blocks of the opposite cylinders each having a matrix 10 extending alongr beside the knife therein`to receive the edge of the opposite knife.

In testimony whereof I nfix my signature, in presence of two witnesses.

Witnesses 1 NHLLIE FnLTsKoG, Il. G. BA'rcnELon.

JOSEPH L. FIRM. 

